1133555 has 8 divisors (see below), whose sum is σ = 1419552. Its totient is φ = 867328.

The previous prime is 1133551. The next prime is 1133579. The reversal of 1133555 is 5553311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1133555 - 2² = 1133551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1133555.

It is not an unprimeable number, because it can be changed into a prime (1133551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4814 + ... + 5043.

It is an arithmetic number, because the mean of its divisors is an integer number (177444).

2^1133555 is an apocalyptic number.

1133555 is a deficient number, since it is larger than the sum of its proper divisors (285997).

1133555 is an equidigital number, since it uses as much as digits as its factorization.

1133555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9885.

The product of its digits is 1125, while the sum is 23.

The square root of 1133555 is about 1064.6853995430. The cubic root of 1133555 is about 104.2671570694.

Adding to 1133555 its reverse (5553311), we get a palindrome (6686866).

The spelling of 1133555 in words is "one million, one hundred thirty-three thousand, five hundred fifty-five".